<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Bootstrap 实例 - 输入框组的下拉菜单按钮</title>
<link rel="stylesheet" href="bootstrap/3.3.7/css/bootstrap.min.css">
<script src="jquery/2.1.1/jquery.min.js"></script>
<script src="bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>

	<div style="padding: 100px 100px 10px;">
		<form class="bs-example bs-example-form" role="form">
			<div class="row">
				<div class="col-lg-6">
					<div class="input-group">
						<div class="input-group-btn">
							<button type="button" class="btn btn-default dropdown-toggle"
								data-toggle="dropdown">
								下拉菜单 <span class="caret"></span>
							</button>
							<ul class="dropdown-menu">
								<li><a href="#">功能</a></li>
								<li><a href="#">另一个功能</a></li>
								<li><a href="#">其他</a></li>
								<li class="divider"></li>
								<li><a href="#">分离的链接</a></li>
							</ul>
						</div>
						<!-- /btn-group -->
						<input type="text" class="form-control">
					</div>
					<!-- /input-group -->
				</div>
				<!-- /.col-lg-6 -->
				<br>
				<div class="col-lg-6">
					<div class="input-group">
						<input type="text" class="form-control">
						<div class="input-group-btn">
							<button type="button" class="btn btn-default dropdown-toggle"
								data-toggle="dropdown">
								下拉菜单 <span class="caret"></span>
							</button>
							<ul class="dropdown-menu pull-right">
								<li><a href="#">功能</a></li>
								<li><a href="#">另一个功能</a></li>
								<li><a href="#">其他</a></li>
								<li class="divider"></li>
								<li><a href="#">分离的链接</a></li>
							</ul>
						</div>
						<!-- /btn-group -->
					</div>
					<!-- /input-group -->
				</div>
				<!-- /.col-lg-6 -->
			</div>
			<!-- /.row -->
		</form>
	</div>

</body>
</html>